Comparison of 99Tcm-sestamibi and 201Tl-chloride to estimate right ventricular overload in children
| Autor: | N. Tonami, K. Hisida, Taniguchi M, J. Taki, Kenichi Nakajima |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Heart Defects
Congenital Male Technetium Tc 99m Sestamibi Heart disease Ventricular cavity chemistry.chemical_element Ventriculo derecho Scintigraphy Technetium Ventricular Function Left medicine Humans Radiology Nuclear Medicine and imaging Count ratio Radionuclide Imaging Paediatric patients Hypertrophy Right Ventricular medicine.diagnostic_test business.industry General Medicine medicine.disease Thallium Radioisotopes chemistry Child Preschool Ventricular Function Right Female Nuclear medicine business Perfusion |
| Zdroj: | Nuclear Medicine Communications. 16:936-941 |
| ISSN: | 0143-3636 |
| DOI: | 10.1097/00006231-199511000-00010 |
| Popis: | To evaluate right ventricular overload in paediatric patients with congenital cardiac disease (n = 25), the uptakes of 201 Tl and 99 Tc m -sestamibi ( 99 Tc m -MIBI) were compared. 99 Tc m -MIBI showed a clearer myocardial border and better contrast between the myocardium and ventricular cavity. Although hepatic activity may influence right ventricular myocardial activity, it did not have a significant effect on the quantitative data of myocardial uptake. The right ventricle-to-background (RV/BG) ratio and left ventricle-to-background (LV/BG) ratio were lower with 99 Tc m -MIBI than with 201 Tl, and the RV/LV count ratio was also significantly lower in the 99 Tc m -MIBI study. The parameters of the RV/LV count ratios showed good correlations between the 201 Tl and 99 Tc m -MIBI studies. The RV/LV pressure ratio was estimated using the formula: RV/LV pressure ratio = 0.99 (RV/LV av ) + 0.02 (R = 0.90, P |
| Databáze: | OpenAIRE |
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